How to get room id in laravel broadcast channel.php

Here is my js

var room_id = 3;
Echo.join('room'+room_id)
.listen('PersonalChat', (response)=>{
    // console.log(response);
 });

Here is PersonalChat.php

public $data;
public function __construct($data)
{
    $this->data=$data;
}

public function broadcastOn()
{
    return new PresenceChannel('room'."How to get room_id");
}

Here is My channels.php

Broadcast::channel('rooom'.'How to get roomid', function ($user) {
 return EventHelper::Filter_UsingEvent($user);
});

I asked my question in my channels.php and PersonalChat.php
Again May I say
My question is ** How to get room id ** in channels.php and PersonalChat.php

Thank you all
Sorry for my english skill

Answer

you can accept param in channel.php like {roomId} then in call back you will get that value

Broadcast::channel('rooom.{roomId}'., function ($user,$roomId) { // $roomId will get
 return EventHelper::Filter_UsingEvent($user);
});

then in js

var room_id = 3;
Echo.join('room.'+room_id)
.listen('PersonalChat', (response)=>{
    // console.log(response);
 });

and in PersonalChat.php

public $data;
public function __construct($data)
{
    $this->data=$data;
}

public function broadcastOn()
{
    return new PresenceChannel('room'.$this->data->roomId); // you need to pass room id when event is trigger 
}

ref link https://laravel.com/docs/8.x/broadcasting#example-application-authorizing-channels